This guide walks you through installing and running n8n on a small VPS using npm, with reverse proxy, HTTPS, and basic authentication.

• OS: Ubuntu (or Debian-based)

A pattern for building personal knowledge bases using LLMs.

This is an idea file, it is designed to be copy pasted to your own LLM Agent (e.g. OpenAI Codex, Claude Code, OpenCode / Pi, or etc.). Its goal is to communicate the high level idea, but your agent will build out the specifics in collaboration with you.

Most people's experience with LLMs and documents looks like RAG: you upload a collection of files, the LLM retrieves relevant chunks at query time, and generates an answer. This works, but the LLM is rediscovering knowledge from scratch on every question. There's no accumulation. Ask a subtle question that requires synthesizing five documents, and the LLM has to find and piece together the relevant fragments every time. Nothing is built up. NotebookLM, ChatGPT file uploads, and most RAG systems work this way.

A curated catalog of free websites for practicing software testing -- UI automation, API testing, security, accessibility, performance, and exploratory bug hunting. Compiled Feb 2026.

We needed real targets to test our AI-powered QE fleet (Agentic QE v3). We researched every practice site we could find, tested 10 of them live, and organized them by what they're actually useful for. This isn't just a link dump -- we've validated these sites and noted what works best for what.